FILE - in this March 20, 2012 file photo, people walk on the Grand Canyon Skywalk during the First Walk event at the Grand Canyon on the Hualapai Indian Reservation at Grand Canyon West, Ariz. On Friday, Oct. 19, 2012, Las Vegas developer David Jin's attorneys will argue before the 9th Circuit U.S. Court of Appeals in San Francisco that the Hualapai tribal court system is manipulated by members of the Tribal Council, hasn't given Jin a fair shot and that he shouldn't have to fight his legal battles there. (AP Photo/Ross D. Franklin, File)